From f188d0524d7e09f7ec801df9761dc1d898b1a1c0 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Sat, 26 Nov 2016 14:26:09 +1100 Subject: [PATCH] powerpc: Use the new post-link pass to check relocations Currently powerpc has to introduce a dependency on its default build target zImage in order to run a relocation check pass over the linked vmlinux. This is deficient because the check is not run if the plain vmlinux target is built, or if one of the other boot targets is built. Switch to using the kbuild post-link pass, added in commit fbe6e37dab97 ("kbuild: add arch specific post-link Makefile") in order to run this check. In future powerpc will use this to do more complicated operations, but initially using it for something simple is a good first step. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman --- arch/powerpc/Makefile | 11 ----------- arch/powerpc/Makefile.postlink | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 11 deletions(-) create mode 100644 arch/powerpc/Makefile.postlink diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 19b0d1a81959..c09600bb2fe2 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -274,17 +274,6 @@ PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) boot := arch/$(ARCH)/boot -ifeq ($(CONFIG_RELOCATABLE),y) -quiet_cmd_relocs_check = CALL $< - cmd_relocs_check = $(CONFIG_SHELL) $< "$(OBJDUMP)" "$(obj)/vmlinux" - -PHONY += relocs_check -relocs_check: arch/powerpc/relocs_check.sh vmlinux - $(call cmd,relocs_check) - -zImage: relocs_check -endif - $(BOOT_TARGETS1): vmlinux $(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@) $(BOOT_TARGETS2): vmlinux diff --git a/arch/powerpc/Makefile.postlink b/arch/powerpc/Makefile.postlink new file mode 100644 index 000000000000..8c0170e45069 --- /dev/null +++ b/arch/powerpc/Makefile.postlink @@ -0,0 +1,34 @@ +# =========================================================================== +# Post-link powerpc pass +# =========================================================================== +# +# 1. Check that vmlinux relocations look sane + +PHONY := __archpost +__archpost: + +include include/config/auto.conf +include scripts/Kbuild.include + +quiet_cmd_relocs_check = CHKREL $@ + cmd_relocs_check = $(CONFIG_SHELL) $(srctree)/arch/powerpc/relocs_check.sh "$(OBJDUMP)" "$@" + +# `@true` prevents complaint when there is nothing to be done + +vmlinux: FORCE + @true +ifdef CONFIG_RELOCATABLE + $(call if_changed,relocs_check) +endif + +%.ko: FORCE + @true + +clean: + @true + +PHONY += FORCE clean + +FORCE: + +.PHONY: $(PHONY)